Railway-car truck.



J. V. MOADAM. RAILWAY GAR TRUCK. APPLICATION FILED MAY 22, 1906.

Patented oct. 13,1908.

2 SHEETSSHEET 1.

J; V. MGADAM RAILWAY GAR TRUCK.

APPLICATION FILED MAY 22, 1906.

Patented 0ct.13,1908.

2 SHEETS-SHEET 2.

iii/b12505 ll ATENT .rnie i JOHN V..MoADAM, OF NEW YORK, N. Y.

i wAILWAY-EAR TRUCK.

Specification of Letters Patent.

No; coarse.

Patented Oct. 13, 1908.

e ncammmea ma 22, was. Serial-No. 218,162.

To all whom it may-concern: j e it--known thetiL Joan V. Moi MAM, it citizen of the *United States, end-resident or the borough d'f Matnhettan, inthe 'cityond "St-ate of New fork, have invented s. new and useful Improvement in Railway-Ger Trucks-of which the "following is e specification. At. present itisthe usual=pract-ice in cor construction to have the lood of the car supported by the trucks at points between or oil set from the side frames. This con struetion requires the -use of very heavy truck bolsters to properly transmit the loadto the side frames and keep the si'deframes properly squared-With respect to each other. My invention consists in.providingirstruc- 'ture in which the zcer loetl is supported upon the side frames independentiy of e truck bolster, the side frames o'feech pair-being n'operlyspaced apart by a cross connecting piece Which receives none of ihe load (if-the car. This arrangement permits of a meterial reduction in the Weight of the truck and also in the costofmanufacturingthe some. v

'?My invention consists further in providing certain improvements in the-conStrhc =tion, form andarmingenrent of the sever-til parts o'fra truck ofthis-character:lraving east side frames; rocker bearings being interposed between th-e botly'o'f thecar end-the truck, which rocker bearings receive'the entire weight off the ca an'ol transmit'it to the truclt/ ln the tyccmnpzinyi lg drawings, Figure 1' represents the truckin side elevation, a portion of the cor end the track also being shown, Fig. 2 is a,transverse-vertical sect-ion 4.0 :t-aken in the plane of-theline A-A-of'Fig. fljlooking in the direction of the arrowsJFig. '3 is a. top plan View o'f'the truck, therocker bearings beingshown in position thereof, Fig. 4 is :r detail top View o'fone of the-side fi an'ies, and Figs. 5,0 and Tore detail'top, side and end views ofone of "the spring caps. l i The :truck shown herein has east side -.t'rames] and"? niche desired slnipe'to produce the strength required; which side'fra-ines ere-spaced apert bye cross connecting piece 3 which isriveted at. 4 and oitcthe topof the frames 1* and 2, respectively.

The WlQQQlSOftllQ truck are denoted by 6. the iilXlQ 7 of eat-h pnir'being mounted in journal bearingsin'th-e .nsnsl 'jonrnnlboxes 8 carried bythe side frarmeso'f the truck. A tie bar 9 connects the bottoms of the journal boxes 8 on one side of the truck to thebottom of the side frame, as is usual. Each of-the truckfremes'l and 2 base; transportion LE1 ofwhich is preferably contracted. A spring cop 12isfitted to-slide vertically in t'he'contracted portion 11 of'thetransyerseopenin'g 10,-Which spring cap may be inserted or removed laterally by bringing it downinto the'l-arger portion of the said opening' 10. Coil springs 13 are ii'iterposed between the spring cap 12 and the side-frame.

transverse-opening 1'0 forms a spring seat. in the form -shown herein, four of these springs id-ere provided whic-h springs ereconfined within the cap by providing lugs 14 and partitions '15, 16, 1'7 and 18011 the bottom of said cap.

Id-Which bodybolster may be provided with il-xerstnil depending thimble 20, which projects downwardly through a transversely elongated hole 21 in the cross connecting forpreventing :1 too great movement of the hotly-with respect to the tr'uck'in every direction. The connecting piece 3'may be provided with a coll-er 22 surrounding the point if-so desired.

Rocker bearings the body=bolster 19 and each of the spring caps 12 for trm-1sn itting the weight of-the car to the side frames independently of a 'truelrbolsi'ccr as distinguished from applying "the weight of-the car onion truck bolster These rocker "hearings, in the present instnmce, constri-ieted and arranged as follows:l*)ach cap 12 is provided with two tests or lugsQ-LQ L, uprising therefronloutside and inside of the side frame. The body bolster 1%) is-provided with depending teats or li'tgs 25. 26, opposite tothe'lugs 23, 24, on the spring cap. Rocker hearing pieces 27, 528, are interposed bet-Ween the body bolster -19 end-thesprihg cap'1 2, the piece ZY'being held in position by th-edugsi'QSJQfi, and the piece 28 beingfheld in position by the lugs "24; 526. The topmnd bottom of'each of these pieces may he ofspherical form. as shown at 29, 30, and the engagement of these pieces with their lugs is such that. the bodybolster 19 or the carmay haven.limited-movement verse opening 10 thcrethrough, the upper ln tfhe present instan'cethe bottom of-the' for each spring cap,

=thim=ble 20 for additional strength'atithis between the said frames as is now common;

Thebody bolster of the car is denoted are interposed between i2 ssngzm in direction, the tow and b Hum of the 3 pieces "28, son" as a brm 3; between each spring cup 1:2 and the bwiy bqlster. Holes 31 are fanned Un'uu 'h {he 5 ems-ts connecting piece 3 through R m the inner rovker bearing pieces 24 @Xi'cnd.

Fmm the @(mstruction hm'iqn set forth ii will be seen that the use of :1 t1 uck homer obviated as the nd of the car is Fuppfiriw! 10 by the side frames ihmugh the wrings 1 spring caps 12 and. rocker beau-1 it n, be understeod that these, 1'0- may be made in 'zu'imls Sha na and 51m suit difi'g rcnt mqdireuwnts. it is aiw "h: 15 unders m1 that file xrm of the. i and connecting pica be that shown and Cm w'ined harem wilnout C nn-ting from thu spirit and scope 0'? my invention and that unions nib might be EVE-(18'; hence 1 do not w myself stnci'ly to the cmlstx'uutiun ha set forth, but

hat shim is:--

1. The combination with the side mules of a; raflmy car truck, of a my body and rocker bearings having :1 lil'niiod rocking movement; in alldireciiom. in J i zz'posuu mtween the car body and H1 3 truck for sup porilng the 0211 Mad synnnuiricuny mm "2'! The c-cnnbinntion with U1 cast f1 .mes of a railwz car truuh H a car body and rocker bearings having :1 Emu V mfking zncvement in all di crions, ink, b0- two/m H10 0 :7 bo iiy z. (1 Has porting the 0121' 102d Symm side rm-nus indqwndcz h 3. The coufhinzxtisn 5H1 of a railway c211 tru". v

Milk 11m first shlv my truck. mid side I Haw-" 1m 11pm iiitml i0 HIMFPUHJ 1M" .1 .unw 11M rm-lwv grimy; caps 4.0 and rocker bear 11gb m5 movement in 11H 6% I 1m fmmus tween 110 car no? 1 {mums hvua suppmyi'ing the 10ml sh iElm-Mhwugh. of a: ihe sifle, frames indepemm. mgr Haw J m slide holster. ink-2 mm} m:

4:. The combination with east frames of 21 railway cur "muck 0f :1, All b0 bolstm' um} rocker 1m. rings having a limiiml rocking 1n0vcment in 2111 dirucfionm intvr- 1.; The mnuhiuntiwn w? h the must wide 50 |,-()$;u\1 lmtwocn the (291 body mjlstm and U19 uzws m a mihvuy can truck. mid sMu 1H fruck for suppsrtin g H10 cal-loud symmui imnsvors o upvning s thwaricully over the side frames indvpvndvniiy ulf .musjh. m' a mu 1w-.,-(l mm spring: 0121): :1 ruck bolster. m \iido, in mid upunil spr'm 'nta-r- Tha combination wiih ilu: .3m lwwwn thv m ps nnu'. inv Hide 'f'mmw rs iniuxpn sui lwiwvvn H10,

seated in the Shh: mum-5,

The

tween thecaps and the s de bearings interposedbetween the spring caps sedate 14. The combination with the east side frames of a railway car truck, said cast side vided with upper contracted portions, of a'.

car body bolster, spring caps fitted to slide in the contracted portions of the transverse openings, springs interposed between the caps and the side frames and rocker bearings interposed between the spring caps and the body bolster.

1d The combination 'With the east side frames of a railway car truck, said side frames having transverse openings therethrough provided with upper contracted portions, of a car body bolster, spring caps fitted to slide in the contracted portions of the transverse openings, springs interposed between the caps and the side frames and rocker bearings interposed be tween thespring caps and the body bolster.

17. The combination with the side frames of a railway car truck, said side frames having transverse openings therethrongh, of a car body, a spring cap fitted to slide in each of said transverse openings and projecting upon both sides of the side frame, springs interposed between the spring cap and side frame and rocker bearing pieces upon both sides of the side frame interposed between the spring cap and the car body.

18. The combination with the east side frames of a railwaycar truck, said cast side frames having transverse openings there through, of a car body, a spring cap fitted to slide in each of said transverse openings jpifojecting upon "both sides of the side frame, springs interposed between the spring cap and side frame and rocker hearing pieces upon both sides of-the side frame ingerposed' between the spring cap and the car ody. 19; The combination with the sidewframes of a railway car truck,-said side frames having transverse openings therethrough, of a car body bolster, a spring cap fitted to slide in each of-said transverse openings and projecting upon both sides of the side frame,

springs interposed between the springcap and side frame and rocker bearing pieces upon both sides of the side frame interposed between the spring cap and the body bolster.

20. The combination with the cast side frames of a railway car truck, said side frames having transverse openings therethrongh, of a car body bolster, a spring cap fitted to slide in each of said transverse openings and projecting upon both sides of the side frame, springs interposed between the spring cap and side frame and rocker bearing pieces upon both sides of the side frame interposed between the spring cap and the body bolster.

Intestimony, that I claim the foregoing as my invention, I have signed my name in presence of two witnesses, this 15th day of May 1906.

JOHN V. McADAM.

Witnesses:

F REDK. HAYNES nar; THJEME. 

